US Bridges

US 12 45 Mannheim over Addison CR

Good

Cook County, Illinois · 565 N of Lake St. · Structure no. 016135100000000

Built
2018
7 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
38,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 45 Mannheim over Addison CR is a concrete slab carrying US 12 45 Mannheim over Addison CR in Cook County, Illinois. It was built in 2018, so it is 7 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 38,900 vehicles a day, roughly 11% of them trucks, projected to reach 36,865 by 2046. The structure is 45 ft (13.6 m) long and 106 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 12 45 Mannheim
CrossesAddison CR
Location565 N of Lake St.
RouteU.S. Route 12
CountyCook County
StateIllinois
Coordinates41.89904, -87.88377
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating70.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length45 ft (13.6 m)
Longest span39 ft (12 m)
Deck width106 ft (32.2 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,900 (2023)
Projected traffic36,865 by 2046
Trucks11%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 12 45 Mannheim over Addison CR built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 12 45 Mannheim over Addison CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does US 12 45 Mannheim over Addison CR carry?

About 38,900 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 12 45 Mannheim over Addison CR?

The structure is 45 ft (13.6 m) long with a longest span of 39 ft (12 m) and a deck 106 ft wide.

Who owns US 12 45 Mannheim over Addison CR?

It is owned by the State Highway Agency.